[plorkyeran]

Reddit tries pretty hard to force you back onto the new design, too. When not using old.reddit.com it "forgets" that I opted out of the redesign on a regular basis, and even old.reddit.com occasionally redirects to the new design.

[gwern]

I think that might be a bug. That was happening to me on a daily or more frequent basis for a while, but I don't think I've had to redo the opt-out in like a week.